Corner connection for door frames



Jan. 6, 1931. 1. A. BAUM CORNER CONNECTION FOR DOOR FRAMS Fille-c1 oct. 14,` 1929 jfl | l l l I r Il Patented Jen.k 6, 1931 naires stares IsAAC A. BAUM, OF 'CHICA'CrOQrLLINorsH CORNER CONNECTION FOR noonv FRAMES 'Appneatibn med october 14; 1929. serial No. 399,621. A

15 Fig. 1 is a plan view of an end of a frame constructed in accordance With my inven tion;

Fig. 2 is a side elevation thereof; Fig. 3 is a sectional view' on the line 3-3 NJ of Fig. 1; Fig. 4 is a vieW taken at right angles to that of Fig'. 2; and

Fig. 5 is a fragmentary se the line 5 5 of Fig. 3.

The side and head frame members A-B respectively are rof the shallow channel type such as shown and described in my copending application Serial No. 383,524, file-d Au-v gust 5, 1929, and comprise a web and side flanges 11. The flanges terminate. in lateral margins 12 having rebent edges 13, forming plaster terminalshaving undercut portions. Attached by Welding tothe Web of the side frame member and projecting verticaltio-nal view on tongue 14 preferably located at the center of the Web. TWO tongues 15 are similarly attached to the under side of the Web of the head frame and project horizontally beyond the end of the frame member. These tongues 14-15 are shown in dotted lines in 3 in their original positions. The attaching unit comprises tivo plates 16 of duplicate construction, being of L- shape in side elevation. The inside edges of each leg of each plate has a lateral flange 17 that snugly interfits With the undercut space provided by the plaster terminals on the 5G frames.

The tWo plates are joined and spaced apart ly beyond the end of the frame member is a by channels, the flanges 18fof whichl arel Welded to the inside faces of the plates, While the Webs 19 are positionedto lie outside of and'preferablyv snugly against the Webs 10 of the 'frame members. The parts are sodesigned that the outer edge -20 of theweb lies outsidegof or beyond the end ofthe web 10 so that when the tongues 11i-415 are hammered into place as shownA in full lines in Fig. 3, the 'driving force will partly be directed against the Web 19, thus ltending to drive the attaching unit` into a close and rigid fit With the fra-mes. A

Preferably the attaching unit is so constructed that both ends are identical thus rendering it reversible'or universal. While I have shoWn the attaching device as a separate unit, it is Vobvious that it might be modilied in several particulars with good results and Without departure from the spirit of my invention.

' l claim:

1. In combinaion, side and head frame members, tonguesconnected to the ends of said members, a pair of plates of L-shape in side elevation, a member joining said plates in spaced relation, means permitting sliding interlocking engagement between the plates and the frame members, said tongues Abeing adapted to be bent around the plate-joining .member When the parts are in final posit-ion. 2. in combination, side and head frame members of angular cross section to provide a Web and flanges, tongues projecting from the ends of the Webs, a connecting unit com prising a pair of angle plates, a member join ing and spacing the plates, and sliding and interlocking means on the plates and the flanges of the frame members the tongues being adapted to be bent 'over the edges of the plate-joining members tohold the parts in final position.

3. In combination, frame members of channel shape in cross section, the margins of the flanges being bent to provide undercut laterally projectingstrips acting as plaster termina-ls, tongues attached to the Webs of the frames and projecting beyond the ends of the same and a corner attaching unit consisting of a pair of angle plates having portions sameV and a Corner att-aching unit Consistingof a pair of angle plates'having portions adapted to slidably interfit with said underadapted to slidably interit With said undercut strips, members joining said plates and so positioned when the parts are in final position that said tongues may be bent over said joining membei;s. n

4. In combination, frame members of channel shape in cross section, the maigin's` o the flanges being bent to providel undercut laterally projecting 'strips acting ras plaster terminals, ongues attached to the Webs of the frames and projecting beyond the ends ofthe eutstrips, Webs oining said plates, said Webs being adapted to lie alongside of the Webs of the frames, and said Jfeongues being adapted Y to be bent over the outer'edge of said plate Webs to hold the parts in assembled position.

In testimong7 Whereofl have 'affixed my signature. f Y

ISAAC A. BAUM.

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